..Current large scale data collection efforts are generally disconnected from micro-scale studies in health sciences, which in turn have insufficiently investigated the behavioural and socioeconomic factors that influence exposure...

..However the potential effect of this plant leaf as a hand washing product has never been studied. The aim of this study is to test the efficacy of this product using an in vivo design with healthy volunteers...

Sampling strategies to measure the prevalence of common recurrent infections in longitudinal studies

Wolf Peter SchmidtDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, UKEmerg Themes Epidemiol 7:5. 2010

..In contrast to incidence which usually requires continuous sampling, LP can be measured at intervals. This study explored how many more participants are needed for infrequent sampling to achieve the same study power as frequent sampling...

Sanitation in the developing world: current status and future solutions

..In the absence of local evidence to the contrary, hygiene promotion programmes should give priority to the safe disposal of faecal material and the adequate washing of hands after contact with adult and child stools...

..Two examples show how environmental interventions for disease control tend to address transmission in one or the other domain; interventions are needed in both domains in order to interrupt transmission...

The impact of health education to promote cloth filters on dracunculiasis prevalence in the northern region, Ghana

A TayehLondon School of Hygiene and Tropical Medicine, Department of Epidemiology and Population Studies, UKSoc Sci Med 43:1205-11. 1996

..Ownership of at least one filter for every 10 people in the household was associated with a reduction of at least 20% in the risk of dracunculiasis...

Should data from demographic surveillance systems be made more widely available to researchers?

Daniel ChandramohanDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United KingdomPLoS Med 5:e57. 2008

..This debate is further discussed in this month's Editorial...

Cost-effectiveness of water quality interventions for preventing diarrhoeal disease in developing countries

..The impact of education is uncertain. Perceived susceptibility to and severity of SARS, and perceived efficacy of hand-washing in preventing SARS, also predicted self-reported hand-washing compliance...

Effect of chlorination of drinking-water on water quality and childhood diarrhoea in a village in Pakistan

..Use of water from rivers and ponds for drinking, cooking, bathing, and washing purposes were not significant risk factors. Our data suggest that swimming, or activities on riverbanks associated with it, is a risk factor...

Water supply and sanitation: some misconceptions

Sandy CairncrossTrop Med Int Health 8:193-5. 2003

Effect of city-wide sanitation programme on reduction in rate of childhood diarrhoea in northeast Brazil: assessment by two cohort studies

..6%. These findings highlighted the existence of a silent epidemic during a period perceived by the Health Services as of low endemicity, indicating the strength and speed of dengue transmission in the city of Salvador...

..Since most cases of diarrhoea are managed at home, it is important to understand how to encourage better management of the longer episodes, which cause an increasing proportion of mortality in some countries...